Crack is a highly addictive form of cocaine that is smoked. Quitting crack can be difficult due to the drug’s addictive nature, and it can cause a range of physical and psychological withdrawal symptoms. Physical withdrawal symptoms may include: FatigueIncreased appetiteInsomnia or hypersomnia (excessive sleepiness)Tremors or shakingChills or sweatingHeadachesMuscle aches and painsNausea or vomiting Psychological … Continue reading What Happens When You Quit Crack